參數(shù)資料
型號: MBI5168CP
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-bit Constant Current LED Sink Driver
中文描述: 8位恒流LED驅動器
文件頁數(shù): 12/15頁
文件大?。?/td> 269K
代理商: MBI5168CP
MBI5168
8-bit Constant Current LED Sink Driver
Package Power Dissipation (P
D
)
The maximum allowable package power dissipation is determined as P
D
(max) = (Tj
Ta) / R
th(j-a)
. When 8 output
September
2003, V0.3
- 12 -
25
55
85
channels are turned on simultaneously, the actual package power dissipation is P
D
(act) = (I
DD
x V
DD
) + (I
OUT
x Duty
x V
DS
x 8). Therefore, to keep P
D
(act)
P
D
(max), the allowable maximum output current as a function of duty cycle
is:
I
OUT
= { [ (Tj
Ta) / R
th(j-a)
]
(I
DD
x V
DD
) } / V
DS
/ Duty / 8,
where Tj = 150
°
C.
Condition
V
DS
= 1.0V
8 output channels active
,
Ta is listed in the below legends.
Device Type
R
th(j-a)
(
°
C/W)
CN
61.65
CD
85.82
CDW
61.63
CP
94.91
Note
Iout vs. Duty Cycle at Rth = 61.65 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
Duty Cycle
I
CN Device Type
Iout vs. Duty Cycle at Rth = 61.63 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
Duty Cycle
I
CDW Device Type
Iout vs. Duty Cycle at Rth = 94.91 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
Duty Cycle
I
Iout vs. Duty Cycle at Rth = 85.82 (
°
C/W)
0
10
20
30
40
50
60
70
80
90
100
110
120
5
1
1
2
2
3
3
4
4
Duty Cycle
5
5
6
6
7
7
8
8
9
9
1
I
CD Device Type
CP Device Type
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